STM32 MCUs

Hello,On a STM32H7RS are using the USB_OTG_HS peripheral in PCD_SPEED_FULL mode using internal clock.After I was able to configure the clock so that the MCU is responding on enumeration requests. The responses however seem to be partially incorrect; the trace tool shows stalls.I did not found an example in current https://github.com/STMicroelectronics/STM32CubeH7RSThe following changes are applied to a CubeMX generated projectmain.c SystemClock_Config:LL3.PLLN was set to output 24 MHzRCC_OscInitStruct.PLL3.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL3.PLLSource = RCC_PLLSOURCE_HSI; RCC_OscInitStruct.PLL3.PLLM = 4; RCC_OscInitStruct.PLL3.PLLN = 60; RCC_OscInitStruct.PLL3.PLLP = 2; RCC_OscInitStruct.PLL3.PLLQ = 40; RCC_OscInitStruct.PLL3.PLL

Hi,I am using NUCLEO-U545RE-Q with X-NUCLEO-NFC07A1.After downloading a program via Arduino IDE, the board got locked.Symptoms:PC cannot detect the board, no ST-LINK device, no COM portST-LINK LED: red always on, green flashingSTM32CubeProgrammer cannot connect, error: No debug probe detectedConnect Under Reset does not workWhat I tried:power cyclingholding RESET when plugging USBConnect Under Reset in CubeProgrammerchecking CN2 jumpers (they are fine)Questions:How can I unlock or erase this board without a BOOT0 jumper? It seems not available on this NUCLEO board.Is there any software-only way to recover the SWD?Thi

Hello,I am using STM32U5G-DK1 Discovery kit and need to store a large amount of data in on-board OSPI flash. Now, the example code by STM32 for this kit uses this OPSI flash in Memory-mapped mode. This mode is good to store an small amount of data but time-consuming when writing a large data to this Flash. Therefore, I need to use this Flash in Indirect mode where I can write to flash Page by Page. For this, I use the below configuration of OSPI:sCommand.OperationType = HAL_OSPI_OPTYPE_COMMON_CFG;sCommand.Instruction = OCTAL_PAGE_PROG_CMD;sCommand.InstructionMode = HAL_OSPI_INSTRUCTION_8_LINES;sCommand.InstructionSize = HAL_OSPI_INSTRUCTION_16_BITS;sCommand.AddressMode = HAL_OSPI_ADDRESS_8_LINES;sCommand.AddressSize = HAL_OSPI_ADDRESS_32_BITS;sCommand.Address = address;sCommand.DataMode = HAL_OSPI_DATA_8_LINES;sCommand.NbData = BUFFERSIZE; // :warning: max 256 bytes per pagesCommand.DummyCycles = 0;

Hello, i am using F446 and i am contemplating using FreeRTOS CMSIS V2 software timer to generate PWM to control motors via motor drivers (IC  chipset). Is this possible? Or must I use the hardware timer, TIM1~7 ?

Hi,We are currently using STM32H753 and are setting up USB Fifos. There is some contradictory information about the available sizes. AN4879 mentions that the available SRAM size is 1.25kBytes for OTG_FS:In the reference manual RM0433 I can only find 4kB for both OTG_HS peripherials, where OTG_HS1 is used for OTG_FS:

Greetings,I am working on a project involving RTC and TAMP mechanism of U5 series MCUs, specifically STM32U585. I have some questions about the working principle of the TAMP pins. In the reference manual RM0456, it is written that the TAMP pins checks if the line is opened or it is shorted (Section 64.1: "Active tamper which increases the security level by auto checking that the tamper pins are not externallyopened or shorted.").I was able to make the open circuit detection work but I couldn't make the shorting detection work, that might be my fault though. The shorting detection is available in U585 right? Also I was wondering how precise is the shorting detection? Let's assume I have a 50 meters long transmission line, can it detect if the line is shorted about 50 centimeters (the line is now 45.5 meters)? If not, how much length of the tranmission line must be removed to make the TAMP pins detect it? In addition, should I do anything to

Hello, I am using an STM32U585 with STOP mode and FreeRTOS in tickless idle mode. The datasheet says the current consumption should be around 4.5uA, however I am measuring 35uA on my custom board that only has the MCU and some decoupling capacitators. Can someone tell me if I need to add something in the code to lower consumption? Are the datasheet consumptions possible running an RTOS? I will leave my code and measurements in attach: void PreSleepProcessing(uint32_t ulExpectedIdleTime) { /* place for user code */ (void)ulExpectedIdleTime; __HAL_RCC_GPIOC_CLK_DISABLE(); __HAL_RCC_GPIOH_CLK_DISABLE(); __HAL_RCC_GPIOA_CLK_DISABLE(); __HAL_RCC_GPIOB_CLK_DISABLE(); HAL_ICACHE_Disable(); HAL_SuspendTick(); HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI); } void PostSleepProcessing(uint32_t ulExpectedIdleTime) { /* place for user code */ (void)ulExpectedIdleTime; SystemClock_Config(

Hi ST community,I create a simple application using USART1 baudrate 9600 TX pin - PB6 & Rx pin - PB7. I send uart frame each 1 second. J22 connects to CP210x. I see that the RX led of CP210x toggle each 1 second but when I open terminal screen on the laptop with same baudrate, nothing is shown. HAL_transmit return HAL_OK. Tx pin and Rx GPIO pin is configured as default, no pull up and pull down. What is problem here?  void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; /** Configure the main internal regulator output voltage */ if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE3) != HAL_OK) { Error_Handler(); } /** Configure LSE Drive Capability */ HAL_PWR_EnableBkUpAccess(); __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_MEDIUMHIGH); /** Initializes the CPU, AHB and

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I am able to flash the binary into external flash memory successfully. However, I am facing issues with handling multiple binaries and execution flow.Issues:FSBL & Application Binary FlashingI have two separate binaries (FSBL and Application). I am able to flash only one binary at a time.Kindly guide how to flash both binaries properly (same address 0x70000000 or different memory sections like 0x70010000).Jump to ApplicationFSBL should run first and then jump to the Application.Kindly explain how to implement the jump to application correctly and ensure proper execution flow.Project Structure & Peripheral Allocation

Hello,I am working on an STM32 USB CDC (Virtual COM Port) device using the STM32 USB Device Library (CubeMX-generated project).My goal is to have the device appear on Windows as a custom COM port name such as:MO3 Device (COMx)However, I want to achieve this without using a custom INF file, since distributing and installing drivers on every PC is not practical for my use case.From my current understanding:The Product String (iProduct) in usbd_desc.c can be modifiedThe Interface String (iInterface) in the CDC descriptor may also influence the displayed nameWindows typically uses usbser.sys and assigns "USB Serial Device (COMx)" by defaultFriendly Name seems to be controlled primarily via INF, not firmwareI have a few specific questions:Is there any reliable way to influence or override the COM port Friendly Name purely from S

I have this Fatal Error. Plese help me"  [Fatal Error] 2.STM32CUBEMX.5.6.0.AnalyticsServer.xml:1:1: Premature end of file. [Fatal Error] 2.STM32CUBEMX.AnalyticsServer.xml:1:1: Premature end of file. [Fatal Error] 2. AnalyticsServer.xml:1:1: Premature end of file. [Fatal Error] 2.STM32CUBEMX.5.6.0.AnalyticsServer.xml:1:1: Premature end of file. [Fatal Error] 2.STM32CUBEMX.AnalyticsServer.xml:1:1: Premature end of file. [Fatal Error] 2. AnalyticsServer.xml:1:1: Premature end of file."

I am using stm32f756zg. In which i configure LWIP with FREERTOS cmsisv2. I am getting hard faults when ping devices from other devices.It works fine when I change FREERTOS cmsis v1 and increase the default task stake.

When TxRSTU and RETRIG are enabled with CONT disabled, will the timer still trigger a register update when it's counter reaches it's PER value? Since it says in the image below that the PER event is generated but says it re-starts from 0 when it's reset but doesn't mention roll-over, and the image above says it'll update registers on timer reset and rollover. Essentially what I'm asking is does it count as a roll-over when the timer reaches its period value when CONT=0? Since I need to know if it'll update it's registers at the end of it's period or no.

Dear Support,Good morning, I have assembled the STEVAL-ROBKIT1 as described here: https://www.st.com/en/evaluation-tools/steval-robkit1.htmlI have followed the assembly instructions as seen here: https://www.youtube.com/watch?v=8fzpv_j343UWhen I switched on the robot and paired with my iPhone application the robot doesn't respond to the manual commands.  For example if I only move forward or only turn the direction or a combination nothing happens:

I am using an stm32u585, specifically the b-u585i-iot02a development kit board.I set up a basic project using stm32cube ide to test clock configurations. System is clocked from the MSIS at 24MHz with PSC of 1 -> HCLK is 24MHz.I enabled the RNG peripheral, clocked with the HSI48. In the default SystemClock_Config() function I commented out the code related to enabling the HSI48. RNG initialization is left as default.Interestingly, the RNG can still generate random numbers with HAL_RNG_GenerateRandomNumber(). The MX_RNG_Init() function succeeds as well.Reading HSI48ON and HSI48RDY bits from the status registers give both values as 0.How is the RNG still working and generating valid numbers?Another curiosity: In this state, the whole MCU takes less power than if I leave the SystemClock_Config() as generated (explicitly enabling the HSI48). See code snippets below: System clock config

Hello,I am currently experiencing some unusual Ethernet transmission (STM to PC) issues with a few of our custom PCBs. We use the STM32H753II chip and the KSZ8081RNB. The KSZ8081RNB is connected to the MCO2 and the RMII-interface of the STM.The IP/TCP/UDP checksum check primarily fails due to corrupted payloads ranging in size from 1 to 20 bytes, or, more rarely, due to corrupted protocols. It doesn't happen regularly, but it happens too often.This means that, for TCP, two or more retransmissions are sometimes needed.udp bad:udp good:

Hello, stm32h7b3lih6q controller has support ethernet connection give me proper solution I want the Communication in beteen Ethernet and Controller. Thanks.

Hello ST Community,I am working on the NUCLEO-N657X0-Q board with a TrustZone project configured in STM32CubeMX with three contexts: FSBL, AppSecure (AppS), and AppNonSecure (AppNS). The FSBL is working correctly and jumping to AppS successfully. I followed the wiki article "How to start with RIF on STM32N6 MCUs" as reference. https://wiki.st.com/stm32mcu/wiki/Security:How_to_start_with_RIF_on_STM32N6_MCUs The secure LED (configured as output push-pull, pulled low initially) turns ON but never toggles. I have tried both HAL_Delay() and a pure software loop  for (volatile uint32_t i = 0; i < 800000; i++);  inside the

I am working with the STM32L4S5VIT6 and currently facing an issue while trying to communicate with the system bootloader over USART. I am using the B-L4S5I-IOT01A Discovery board, on which I am attempting this setup. I have configured BOOT0 correctly and verified that the MCU enters boot mode (the application stops running as expected). I connected USART2 on PA2 (TX) and PA3 (RX), tried swapping TX/RX lines, and also interfaced through a MAX3223 level shifter to a MOXA device, but the STM32CubeProgrammer still reports a “KO – device not responding” error. I have confirmed that the MCU runs user code correctly (LED blink test), so basic functionality is intact. At this point, I suspect either a configuration misunderstanding from AN2606, incorrect peripheral mapping for this specific MCU, or a hardware-level issue with the UART path. Has anyone faced a similar issue with STM32L4 series bootloader communication, or can help clarify the exact USART instances/pins supported in boot mode

Hi everyone,I am working with the NUCLEO-U385RG-Q (MB1841) and I've noticed an inconsistency in the UM3062 user manual, specifically in Table 18 (ST Morpho connector pin assignment).The documentation states that PB7 is available on the Morpho connector at pin 5 of CN10. However, in the standard factory configuration, this does not seem to be the case. It appears that the connection depends on the solder bridge (SB) configuration, but the manual is not explicitly clear about the default state for this specific board variant.This makes the pinout tables quite confusing at a glance.Could you please tell me where I made a mistake and are there any other reliable sources of information about the pinout connections for this Nucleo board?Thank you in advance for information.

Hello,I've been struggling with this issue for a couple days, I have a Nucleo-L476RG board that I am trying to run and debug in VS Code. I'm using the STM32CubeMX + STM32 VS Code Extension tool chain to create cmake files, build, and then debug, but I cannot run and debug code due to an error:Error in initializing ST-LINK device.Reason: ST-LINK firmware upgrade required. Please upgrade the ST-LINK firmware using the upgrade tool.I have tried using the "Upgrade ST-Link Firmware" button in the VS Code Extension "STM32Cube Devices and Boards Menu" and I get the following error:Fatal error while trying to update STLink Firmware. Source: STM32Cube Debug CoreSo I installed STM32CubeProgrammer and tried to upgrade firmware from there. I get the following information about my device:Serial Number: 066AFF485671664867215448Firmware Version: V2J43M28When I select

Hi everyone,I am currently facing a very frustrating issue while trying to interface an AP Memory APS51208N (Octal PSRAM) with an STM32H723 via the OctoSPI peripheral.To avoid reinventing the wheel, I recently refactored my initialization code to use the official ST aps512xx library (https://github.com/STMicroelectronics/stm32-aps512). I'm using read and write latency set to 7.Unfortunately, the peripheral is still not working properly, and I am experiencing three distinct, highly erratic behaviors:1. Weird Register Read Pattern When I try to read the memory control registers using the BSP functions, the returned values are incorrect and seem to form a repeating sequence rather than actual register data. Here is what I get for MR0 to MR8:Array[0] (MR0) = 0x08

I created an independent task to run the TCP client and send.[424] local 192.168.10.188 port 5001 connected with 192.168.3.100 port 57804 [ ID] Interval Transfer Bandwidth [424] 0.0- 1.0 sec 5660 KBytes 46368 Kbits/sec [424] 1.0- 2.0 sec 5500 KBytes 45055 Kbits/sec [424] 2.0- 3.0 sec 5389 KBytes 44149 Kbits/sec [424] 3.0- 4.0 sec 5191 KBytes 42526 Kbits/sec [424] 4.0- 5.0 sec 5088 KBytes 41681 Kbits/sec [424] 5.0- 6.0 sec 4936 KBytes 40436 Kbits/sec [424] 6.0- 7.0 sec 4832 KBytes 39583 Kbits/sec [424] 7.0- 8.0 sec 3816 KBytes 31258 Kbits/secThe above is the data volume and status received by my iperf server. After that, my client task no longer sends any messages. I use my computer to ping the IP address of my STM32, and then the client will resume sending.I observed that the gState of my heth variable is HAL_ETH_STATE_STARTED, and the ErrorCode is

The output of TIMX_CH1 and TIMx_CH1N is decided by previous value before bits 6:4 changed to Frozen mode?